Attachment for pumps



G. A. HUMASON ET AL Aug. 7, 192s.

ATTACHMENT FOR PUMPS Original Filed May 14, 1926 Q"""" 'Il y 30 section Patented Aug. 7, 1928.

'UNITED` STA TES GRANVILLE A. HUMAVsoN AND WILLIAM L; CHILDS, orv HOUSTON, 'rEXAsysAID CHILDS ASSIGNOR TO REED ROLLER BIT COMPANY, OF HOUSTON, TEXAS, AND

HUMASON ASSIGNOR'TO J. A. LOGAN, OF HARRIS COUNTY,'TEXAS.

SAID

.ATTACHMENT 'FOR PUMPS. v

j 'original application led May 14, 1926, Serial No. 169,137.v Divided vand this application led Y.

December 27, 1926, Serial No. 157,316,l Renewed May 18, 1928,l

Ourinvention relates to an improvement in vdeep well reciprocating pumps, and 1s particularly ydesigned for attachmentto pumps operating in deep wells,and vpa1,t1ci i 5 larly in wellsrwherein sand andfsedimeut is encountered with the oil being pumped.l It is an object of the invention to provide a pump whichwilloperate under difficult conditions and willprevent the clo gingof sand-about theplunger land the va ves. It is desired to provide meanswhereby fluid may be forced into the pumpbarrel to carry awa with it sand, or other foreign material, ten ing to interfere with ythe properl action of the pump. V

This invention is a division lof the invention set outin-l our prior application for patent, Serial No. 109,137, filed May 14th,

1926, on an improvement in pumps.

Referring to the drawing herewith, Fig. 1 shows a central vertical section of the lower end of a pump barrel and casing, said pump barrelk being equipped with our in-y vention. Fig. 2 is a similar view of a slightly different embodiment of the invention, thek casing being omitted. Fig. 3 is a transverse section on the line 3--3 of Fig. 1. Fig. 4 isa similar section on the line 4-4 of Fig. 1. Fig. 5 is a transverse on the line 5-5 of Fig. 2. Like designumerals of reference are employed to nate like parts in all the views.

In the embodiment disclosed in Figs. 1, and 3, I have shown an outer casing 1, the lower end ofV which isv connected with a bushing 5, which closes the casing, exceptv for acentral-opening 6, fitting about the screen or perforated pipe 12. The casing is spaced outwardly from the tubing shown at 2; said tubing 1s connected at its lower end to a head 9, which serves to close. the lower end of the barrel, except for a central channel 13 therethrough, in the upper end of which is screwed a standing valve 14 of the stationary lunger type. The passage 13 is also threa ed at its lower end for connection with a gas anchor, or other similar pipe 15. Said pipes 15 and 12 are spaced apart by a connectionV within the head 9, as clearly shown in the drawing. The bushing 9 is seated within' ay tapered seat 8, which is shaped to receive the lower tapered end l1 of the head 9, making there-` withv a Huid-tight seal.v Y A The head9*is. provided with -a series ofl openingsv 16,i which extend, from the upper endy downwardlyto a point below the-'pumpl barrel 2 andare then extendedlatera'lly to connect yat 17 with the space 1.8 between the casing and the head. The upper ends of the openings 16 are'adapted to be closed by a ring-shaped yal-ve .-1791, which fits within theannular space' betweenlthe tubing and lthe standing valve. It rests gravityQ-up'on the upperend of the head 9, tending to close said openings 16(y 'It may be lifted from its seat, however, bylluid under pressure comingk through the passages 16, and we contemplatevthat liquid shall be 4forced down? wardly between the tube and'the'casing from the surface under high pump pressure, so as to be projected from'the openings 16 upwardly past the valve to assist in main-` taining sand and sediment in circulation and lifting the saine to the surface. ring 19, as shown in Fig. 4, is provided with outer openingsf20 adjacent the tubing and inner openings 21 adjacent the standing valve, sopas to Vallow the passage of liquid when the valve is raised. l

In Figs. 2 and 5 inclusive, we have shown aslightly different embodiment of the `invention, in which ythe tubing 2 is connected by means of a coupling 22 to a nipple 23, which 1s connected at its lower end to a head 9. Said head has a central tapered seat 24 to accommodate a seriesofv packing rings 25 therein, thus forming a downwardly tapered seat of `flexible material, within which the standing valve 14 may be fitted, and it is contemplated that the standing valve'may be forced downwardly in the seat within the packing rings, and the gland 26 at the upper end of the packing seat may be tightened downwardly to form a tight seal about the standing valve.

The head 9 has openings -16 therein leading from the space without the head upwardly to connect with the space within the nipple 23. In the upper ends yof the openings 16 we place a series of valve cages 28, which are screwed within openings Vin the head about the passages 16, andare pro-l vided with ball valves 27 therein acting to The valve v prevent flow ofv liquid backwardlythrough the passages 16". The lower end of the head 9 is threaded at 29 V'lfor engagement with a coupling, to which the easing` may be oonneeted for` forming al Closure for the lower end of the casing in any desired.,- manner. A gas anchor 15 is connected within the head below the standing Valve, as in the previous embodiment.

In the operation of a pump equipped with our flushing attachment, the piston barrel will telescope over the upper end of the barrel of the standing valve 111, this strueture being old in the art. The invention resides simply in the provision about the standing valve of means `for allowing the flushing ofliquid upwardly about the Valve from the space between the easing and the working barrel of the pump.

7What we claim as new and desire to protect by Letters Patent is:

1. In a pump, a tubing, a. standing valve head closing the lower end thereof, a standing valve barrel projecting upwardly from sla-,id head, a valve in said standing Valve barrel, said, head havingy openings therein connecting the outside thereof with the interior of said tubing,`and a` casing outside said tubing through whichwiiuid may be discharged through said openings and upwardly in said tubing outside said standing Valve barrel.

2. In a pump, a tubing, a standing valve head closing the lower end thereof, a standing lValve. barrel;V projecting upwardly from said head, a Valve in said standing Valve barrel, said head having openings therein connecting the outside thereof with the interior of said tubing, inwardly opening Valves in said openings and a casing outside said tubing through which fluid may be discharged through said openings and upwardly in said tubing outside said standing valve barrel'.

3. The 'combination witli-` a well easing, a

tubing thereinya head closing the lower vend of said tubing, a standing valve projecting upwardly from said head within said tubing, there being passages from said casi-ngeto saiicltubing to supply communication -between saidvtubing and standing Valve and permit fluid to be discharged freely upwardly about said Valve. y

In testimony whereof, we hereunto aiiiX our signatures this 1'?"v day vof' December` A. D. 1926.

GRANVILLE A. HUMAsoN. WILLIAM L. oHiLDs.k 

